Potted three-phase toroidal transformer up to 45 kVA


Datasheet as PDF
Potted three-phase power-dry-transformer, toroidal three-phase transformer in cast resin

ceenergyvdeEN61558-o-sm


Potted three-phase toroidal transformer

BV 2144001a


Field of application


Isolating transformer conform to IEC / EN 61558-2-4 for general purpose, e.g. as safe separation for devices conform to VDE 0700 / EN 60335, or as distribution transformer to build in TN-systems. Useable for potential free net, for test systems or as power-ratio transformers. For machine controls, vehicle construction, automotive technology, as toroidal-isolating-transformer to supply medical rooms, as high current transformer up to 10 kA.


Description


The core of toroidal transformers consists of a thin grain-oriented tape, which is wound in direction of the magnetic flow. The direction corresponds with the direction of rolling and the losses are very low. The air gap just arises at the first and the last winding, hence it is very small. Thus a low magnetic stray field, small weight and small volume are the results.

The three-phase toroidal transformer consists of three separate transformers without chain-linking to the core. The arrangement of the three phases can be chosen. Like this an adjustment to difficult geometric relations is possible.

If one phase fails at the input, there will remain at least one phase without phase displacement at the output. In case a phase conductor has an earth fault, the voltages of the other two phase conductors remain constant, hence they won’t increase.


Technical data


3AC-isolating transformer conform to IEC / EN 61558-2-4, VDE 0570-2-4
Fully potted in a housing
On request IP 54 possible
Temperatureclass B
max. ambient temperature 40°C
Fire class UL94 V0
Prepared for protection index I
Cable connectors or block terminals, shock proof conform to VBG4
or flat termination with bolt, not shock proof
Frequency 50 - 60 Hz


Table


Secondary
power

Efficiency

Voltage
factor

Dimensions in mm

Copper
weight

Total
weight

BV

H

L

L1

B

B1

Ø

11 kVA

-

-

340

500

-

320

-

-

50 kg

135 kg

-

17 kVA

-

-

381

630

530

365

285

10,5

70 kg

180 kg

2144001a

22 kVA

-

-

420

550

-

390

-

-

80 kg

220 kg

-

45 kVA

-

-

570

570

-

520

-

-

110 kg

380 kg

-

Technical changes and optimisation reserved. All details are guide values, variations are possible.

03/2015


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